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Fencer Intel
critical 9.8

CVE-2020-11586 json

An XXE issue was discovered in CIPPlanner CIPAce 9.1 Build 2019092801.

published 6y ago modified 4mo ago also EUVD-2020-3936

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

An XXE issue was discovered in CIPPlanner CIPAce 9.1 Build 2019092801. An unauthenticated attacker can make an API request that contains malicious XML DTD data.

Patch / fix

  • cipplanner cipace 9.1

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Exploit prediction

1.25% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • criticalstart.com https://www.criticalstart.com/vulnerabilities-discovered-in-cipace-enterprise-platform/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.